[1]徐猛,金梁,魏丹,等.基于CROPWAT模型的哈尔滨地区26年大豆生产水足迹变化研究[J].大豆科学,2019,38(02):251-257.[doi:10.11861/j.issn.1000-9841.2019.02.0251] XU Meng,JIN Liang,WEI Dan,et al.Research on Soybean Production Water Footprint Based on CROPWAT Model During Past 26 Years in Harbin[J].Soybean Science,2019,38(02):251-257.[doi:10.11861/j.issn.1000-9841.2019.02.0251]

Water footprint provides a new index system for evaluating agricultural water use during crop growth period in major soybean producing areas. In order to quantitatively evaluate the impact of water footprint composition and rainfall year types on soybean production, water footprint of soybeans in Harbin city(1986-2011) has been calculated using the CROPWAT model provided by FAO，through which the regulations changes of its composition distributed in different rainfall year type and the relationship between the footprint with soybean planting area/yields were investigated. The results showed that the components of soybean water footprint varied from 1986 to 2011. From the whole view, green water footprint took a large proportion in the total water footprint content, which ranged from 0.12 to 0.29 m3?kg-1; the agglomeration effect was found in water-deficient year type for blue water: The five years for containing the blue water were all belonging to the water-deficient year, and normal and rich years basically need no irrigation. The changes of water footprint from 1986 to 2011 showed the decreasing trend, the blue water ranged from 0.017 4 to 0.048 2 m3?kg-1, which accounted for 9.52% to 28.73% of water footprint. The index R2 of quadratic equations showed that the relationship between effective rainfall and soybean yield per unit in wet- and dry-year could be described with quadratic function. The results of this study can provide a basis for the overall management of water and fertilizer in the major soybean producing areas of Heilongjiang province.

［3］Chapagain A K, Hoekstra A Y, Savenije H H G, et al. The water footprint of cotton consumption: An assessment of the impact of worldwide consumption of cotton products on the water resources in the cotton producing countries ［J］. Ecological Economics, 2006, 60:186-203.